Answers

Subtract 72/48 from 42/70

1^st number: 42/70, 2^nd number: 1 24/48

42/70 - 72/48 is -9/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 48 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 70 × 24 = 1680,
   42/70 = 42 × 24/70 × 24 = 1008/1680
3. Likewise, for the 2nd fraction, since 48 × 35 = 1680,
   72/48 = 72 × 35/48 × 35 = 2520/1680
4. Subtract the two like fractions:
   1008/1680 - 2520/1680 = 1008 - 2520/1680 = -1512/1680
5. After reducing the fraction, the answer is -9/10

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